Sennheiser Set 820 Notice D'emploi page 38

RR 820 stethoset receiver
One transmitter can transmit to several receivers. Additional RR 820
receivers are available from your authorized dealer.
RR 820 S clip-on receiver
Instead of earbows, this receiver features a socket for connecting a
headphone or a connecting cable which allows its use with a hearing aid.
MKE 800 TV external microphone
If your TV doesn't have a headphone output or RCA socket, you
can use your Set 820 together with the MKE 800 TV microphone.
Fix the microphone to the loudspeaker of your TV by means of Velcro tape.
Connect the microphone connector to the MIC socket on the transmitter and
set the transmitter's MO/ST switch to mono (MO).
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